Similarweb Ltd.
SMWB- Exchange
- NYSE
- Industry
- Services-Computer Programming, Data Processing, Etc.
- SEC CIK
- 0001842731
In the last 90 days, Similarweb Ltd. insiders filed 0 open-market purchases and 9 sales; 70 institutions reported holding it in 13F filings for Q2 2026, worth $312.1M in total; ARK Invest is the only superinvestor holding it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $15.2M in total
- 9
- 13F holdersQ2 2026, −10 vs. previous quarter
- 70
- 13F valueReported value at the end of Q2 2026
- $312.1M
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding SMWB, Q2 2026
1 superinvestor reports holding Similarweb Ltd. on Form 13F. Percentages are the stock's share of each portfolio.
Latest insider trades
Open-market purchases and sales by Similarweb Ltd. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 25, 2026 (view filing)7:46 AM ET | Sep 24 | 1 day | Offer OrChief Executive Officer | SSale | −114.3K | $7.69 | −$879.1K | −2.8%3.93M after | 2 lots10b5-1 |
| Sep 24, 2026 (view filing)7:56 AM ET | Sep 22-23 | 2 days | Offer OrChief Executive Officer | SSale | −62.9K | $8.45 | −$531.4K | −1.5%4.04M after | 2 lots10b5-1 |
| Sep 22, 2026 (view filing)7:43 AM ET | Sep 18-21 | 4 days | Offer OrChief Executive Officer | SSale | −69.7K | $8.32 | −$579.9K | −1.7%4.11M after | 2 lots10b5-1 |
| Sep 18, 2026 (view filing)6:13 AM ET | Sep 16-17 | 2 days | Offer OrChief Executive Officer | SSale | −76.1K | $8.38 | −$637.6K | −1.8%4.18M after | 2 lots10b5-1 |
| Sep 16, 2026 (view filing)9:07 AM ET | Sep 14-15 | 2 days | Offer OrChief Executive Officer | SSale | −79.6K | $8.53 | −$679.2K | −1.8%4.25M after | Amended2 lots10b5-1Duplicate filing |
| Sep 16, 2026 (view filing)7:01 AM ET | Sep 14-15 | 2 days | Offer OrChief Executive Officer | SSale | −79.6K | $8.53 | −$679.2K | −1.8%4.25M after | 2 lots10b5-1Duplicate filing |
| Sep 16, 2026 (view filing)6:55 AM ET | Sep 14-15 | 2 days | Offer OrChief Executive Officer | SSale | −79.6K | $8.53 | −$679.2K | −1.8%4.25M after | 2 lots10b5-1 |
| Sep 14, 2026 (view filing)9:07 AM ET | Sep 10-11 | 4 days | Offer OrChief Executive Officer | SSale | −118.2K | $8.06 | −$952.2K | −2.7%4.33M after | 2 lots10b5-1 |
| Sep 10, 2026 (view filing)9:28 AM ET | Sep 8-9 | 2 days | Offer OrChief Executive Officer | SSale | −147.0K | $8.17 | −$1.20M | −3.2%4.45M after | 2 lots10b5-1 |
| Aug 27, 2026 (view filing)8:03 AM ET | Aug 26 | 1 day | Offer OrChief Executive Officer | SSale | −383.1K | $9.00 | −$3.45M | −7.7%4.60M after | 4 lots |
Top 10 13F holders, Q2 2026
The largest institutional positions in Similarweb Ltd. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Naspers Ltd | 11,173,265 | $68.5M | 81.19% | 00.0% | Unchanged |
| Viola Growth Management Fund 2 Ltd. | 10,810,778 | $66.3M | 88.48% | +10,810,778 | New |
| Menora Mivtachim Holdings Ltd. | 4,015,494 | $24.6M | 0.10% | 00.0% | Unchanged |
| Wellington Management Group LLP | 3,624,685 | $22.2M | 0.00% | +657,928+22.2% | Added |
| ION Crossover Partners Ltd | 3,030,826 | $18.6M | 24.88% | 00.0% | Unchanged |
| Ulysses Management LLC | 2,928,474 | $18.0M | 6.21% | −70,000−2.3% | Reduced |
| S Squared Technology, LLC | 1,690,000 | $10.4M | 3.21% | +90,000+5.6% | Added |
| Schonfeld Strategic Advisors LLC | 1,210,629 | $7.42M | 0.04% | +921,455+318.7% | Added |
| Y.D. More Investments Ltd | 1,147,035 | $7.03M | 0.22% | −4,263−0.4% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 834,663 | $5.12M | 0.03% | +482,593+137.1% | Added |